Moderna (NSDQ:MRNA) has announced positive interim data from the Phase 1 study of its quadrivalent seasonal flu vaccine candidate, mRNA-1010. Still, the results did not impress investors, as they seemed to be broadly in line with performance of Sanofi’s (NSDQ:SNY) common Fluzone HD flu vaccine. MRNA shares fell roughly 9% to $249.20 in mid-morning trading.…